Re: Spindle motor control problems

[Fred Proctor <frederick.proctor-at-nist.gov>]

Jon Elson wrote:

> I'm sending this mostly for Fred Proctor and Ray Henry
> to comment on.  I finally got around to hooking up the
> spindle start/stop signals from the auxilliary parallel
> port and opto relay board to my spindle VFD.
> 
> What is most odd is it works perfectly in manual mode,
> both from the on screen TkEMC button/drop-down menu
> and from the F9 function key, but does NOT work correctly
> from either MDI entries like M03 and M04 or the same
> commands in a program.  It looks like it does half of what
> is needed for M03 and M04, which is to switch off the spindle
> brake.

I don't know if this is causing Jon's problem, but I noticed that the
lube controller defaults its output bit to index 9. If you have
something on index 9, in my case it was SPINDLE_INCREASE_INDEX, then it
collides with the lube controller with weird symptoms. In my case when I
went from manual to auto, the spindle speed increased.

The workaround is to set [EMCIO] LUBE_WRITE_INDEX = <unused value>

If this is omitted, and you have something on index 9, you're in
trouble.

--Fred